Codeigniter open_basedir_restriction in effect on shared hosting

Details

Generally this error is occur if we are using shared hosting.
if you are getting this error you have to change config file which is located in "/application/config/config.php" and change will be before change

$config['sess_driver'] = 'files';
$config['sess_cookie_name'] = 'ci_session';
$config['sess_expiration'] = 7200;
$config['sess_save_path'] =NULL;
$config['sess_match_ip'] = FALSE;
$config['sess_time_to_update'] = 300;
$config['sess_regenerate_destroy'] = FALSE;

after change

$config['sess_driver'] = 'database';
$config['sess_use_database'] = TRUE;
$config['sess_table_name'] = 'ci_sessions';
$config['sess_cookie_name'] = 'ci_session';
$config['sess_expiration'] = 7200;
$config['sess_save_path'] = 'ci_sessions';
$config['sess_match_ip'] = FALSE;
$config['sess_time_to_update'] = 300;
$config['sess_regenerate_destroy'] = FALSE;

After this changes we have to create a New table in database that's Name should be 'ci_sessions' and table structure will be

CREATE TABLE `ci_sessions` (
  `id` varchar(128) NOT NULL,
  `ip_address` varchar(45) NOT NULL,
  `timestamp` int(10) UNSIGNED NOT NULL DEFAULT '0',
  `data` blob NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

ALTER TABLE `ci_sessions`
  ADD KEY `ci_sessions_timestamp` (`timestamp`);
COMMIT;

Example

Before Change $config['sess_driver'] = 'files'; $config['sess_cookie_name'] = 'ci_session'; $config['sess_expiration'] = 7200; $config['sess_save_path'] =NULL; $config['sess_match_ip'] = FALSE; $config['sess_time_to_update'] = 300; $config['sess_regenerate_destroy'] = FALSE; After Change $config['sess_driver'] = 'database'; $config['sess_use_database'] = TRUE; $config['sess_table_name'] = 'ci_sessions'; $config['sess_cookie_name'] = 'ci_session'; $config['sess_expiration'] = 7200; $config['sess_save_path'] = 'ci_sessions'; $config['sess_match_ip'] = FALSE; $config['sess_time_to_update'] = 300; $config['sess_regenerate_destroy'] = FALSE;